Computing and like machine



Aug. 24, 1937. A. w. Fl-:lL-:RTAG

COMPUTING AND LIKE MACHINE AFiled June 1,1, 1955 s sheets-sheet 1 Aug.24, 1937. A, w FElERTAG 2,090,788

COMPUTING AND LIKE MACHINE Filed Ju'ne 11, 1955 s sheets-sheet 2 gmc/rm4 ARTHUR MIE/mme.

551s l l WMA Aug. 24, 1937. A. w. FEIERTAG COMPUTING AND LIKE MACHINE ssheets-sheet s Filed June 1l, 1935 gmc/wm Patented Aug. 24, 1937 PATENTOFFICE nl?" AND LIKE MACHINE Arthur W. Feiertag, Cincinnati, Ohio,assignor to Remington Rand inc., New York, N. Y., a corporation ciDelawae Application .lune il, i935, Serial No. 26,047

1 Claim.

My invention relates to tally roll mechanism for use on computing,tabulating, typewriting and like machines.

One of the main objects of my invention, generally stated, is to providea simple and eilicient automatic rewind device for tally rolls includingnovel means for controlling the line spacing and feed of a tally rollstrip or strips.

Another object of my invention is to provide lo improved mechanism ofthe character specied that may be readily introduced as an attachment toexisting computing, typewriting or like machines without modifying, ormaterially modifying, the existing structural features thereof.

l5 A further object of my invention is to provide an improved tally rollmechanism in which a tissue tally strip is used to effect a doubleprinting without the use of carbon paper, and in which the regular inkribbon is used to produce both rst and second copies Still anotherobject or' my invention is to provideimproved means for effectivelysupporting the tally strip take-up roll and yet maintain maximumvisibility.

5 A further object of my invention is to provide improved means for linespacing the tally strip and ledger sheet in unison whenever simultaneousspacing of the two sheets is desired.

Another object of my invention is to provide an improved tally rollmechanism which is car- 30 ried by a fixed part or" the machine and doesnot travel with the carriage.

Stiii another object of my invention is to pro-s vide a tally rollmechanism by means of which a duplicate printing of each item may be cb-35 tained on a tally strip in a vertical column regardless of themovements of the carriage and the distribution of the same items on therecord sheet.

A further object or my invention is to provide tally roll mechanism inwhich a tally strip is sup- 50 combinations ci devices set forth in thefollowing description and particularly pointed out in the appendedclaim.

In the accompanying drawings, wherein like reference characters indicatecorresponding 55 parts in the diierent views,

Fig. 1 is a right side elevational view, with certain parts omitted, ofa computing machine equipped with the devices of my invention;

Fig. 2 is an isometric view of a portion ofthe tally roll mechanismembodying my invention showing said mechanism as a single unit and innormal position detached from the computing machine;

Fig. 3 is a vertical sectional view of the device, the section beingtaken just inside the gears forming the driving train for the take-uproll, on the line 3-3 of Fig. 8 and looking in the direction of thearrows at said line;

Fig. 4 is an enlarged, detail fragmentary vertical sectional view takenthrough the axis of the take-up roll and `illustrating the frictiondrive for said roll, the section being taken on the line i-i of Fig. 2and looking in the direction of the arrows at said line; i

Fig. 5 is a fragmentary, right side elevational view, with parts insection, of my novel automatic rewind device, the view illustrating therelation of said device to the traveling carriage and cer y tain of theoperating mechanism of the computing machine;

Fig. 6 is a detail, vertical sectional view through the tally stripchute, the section being taken on the line tof Fig. 1 and looking in thedirection of the arrows at said line;

Fig. 7 is a fragmentary, detail, sectional view showing the relativepositions of the tally strip, ribbon, ledger sheet, and platen togetherwith the upper part of one of the type sectors; and

Fig. 8 is a fragmentary, vertical sectional view through the tally stripfeed roll and taken along the line d of Fig. 5.

I have shown my invention in the present infstance embodied in acomputing machine known as the Dalton Multiplex commercial ledgerposting and statement machine, model 490 Z 131 Z, in which the devicesof my inventiiin may be readily incorporated without modifying. ormaterially modifying, the existing structural fea tures of such machine.Since the above machin. is a well known and marketed computing maAchine, I have only shown so much thereof as i necessary to arrive at anunderstanding oi .':ly invention in its embodiment therein. It should beunderstood, however, that the invention is not restricted to its use insaid machine alone but may be included in various forms of computing,typewriting and like machines generally, 5wherever found available.

I shall iirst describe some of the existing structural features of theDalton Multiplex machine lil and will afterwards describe the devices ofthe present invention in their combination therewith.

The Dalton computing machine, as is well known, is a machine of theten-key type in which the major portion of the mechanism is housedwithin a casing or cover member I3, as shown in Fig. 1. The keyboard issituated at the front of the casing or machine and includes a set ofnumeral keys II, which upon being depressed successively will set upcorresponding amounts in the usual pin carriage (not shown), so thatupon making an operating stroke of the usual handle I2 said amounts willbe entered into the accumulator wheels. Simultaneously with thiscomputation or entering intoV the accumulator wheels, printinginstrumentalities or type sectors I3 will be swung upwardly to positionto print the amount upon any suitable record sheet R through the mediumof an interposed ink ribbon I4 fed from one to the other of the usualribbon spools I5 suitably mounted toward the front of the machine on theupper side of the casing III.

During each printing operation the types strike against a platen I3around which the sheet R has been fed in a manner to be presentlydescribed, said platen having a shaft I1 which is journaled in suitablebearings provided in end plates I8 and I3 of the usual travelingcarriage which is designated as a whole by the reference numeral 20. Asshown in Fig. 5 the carriage -20 is of the usual construction and isprovided with grooved raceways in rails 2I thereof in whichanti-friction rollers or balls 22 are reoeived,`said balls also beingreceived in oppositely disposed grooved raceways 23 of a fixedsupportingbar or rail 24. The carriage is thus supported for travelingmovement from side to side of the machine and relatively to the printinginstrumentalities I3.v

The usual means are employed for propelling the carriage and arrestingit in its different columnar positions for the entry of items in thedifferent columnar fields on a work sheet or sheets carried by thecarriage. The usual means are also employed for normalizing the machineand thereby preventing tabulating jumping of the carriage where theentries are to be made vertically instead of horizontally on the ledgersheet, as will hereinafter appear. However, inasmuch as a showing ofsuch normalizing" means is unnecessary to arrive at an understanding ofmy present invention, illustration thereof has been omitted.

To aid in the handling and insertion of work sheets into the machinethere is provided a paper table 25, paper rest plate 25* and paperguides 26, said paper table being carried by the carriage and securedbetween the side plates I8 and I 3 thereof by shoulder screws 25". Thepaper rest plate 25'L is adjustably secured to and supported by thepaper guides 26 with the aid of knurled screws 26". 'I'he paper guides26 have forwardly projecting flanges 26h at the sides thereof whichconstitute side edge guides for determining the lateral position of theledger sheet or record sheet on the carriage, and are supported by arms21 which are adjustably mounted on the vsquare shaft 26. An additionalguide 28 aids in leading a record sheet to the rear side of the platenwhere feed rollers 29 and 30 coacting with the platen I6 in a well knownmanner, and the usual paper deilector 3| will lead said sheets to theprinting point or line when the platen shaft I1 is turned. The feedrollers 29 and 30 are of the usual reaocofrss leasable construction,being spring pressed against the platen, thereby holding the insertedwork sheet against the platen to eil'ect a feed thereof.

According to the type of work that is being done on the machine at anygiven time, a group of entries to be made on a record sheet may beentered in a horizontal line by tabulating the carriage from one columnto another in the usual manner. At times, however, the character of thework may be such that it is deemed desirable to make the group ofentries on the record sheet in a vertical column one under anotherinstead oi' across the sheet. In order that this may be accomplished,the model of the Dalton machine hereinbefore referred to is providedwith a finger piece or button (not shown) on the front plate of themachine for normalizing" the operation of the machine. This button whenin one position causes the carriage to be advanced or stepped forward ateach actuation of the handle I2 to a new columnar 'field or tabulatedposition, in order that the entries may .be made in a horizontal lineacross the sheet. When, however, this button is in the other or"normalizing" position it will cut out the tabulating operation of thecarriage at each actuation of the handle, so that the carriage remainsat rest, but at each such operation of the operating handle will causethe line spacing mechanism to be actuated in order to print the itemsone under another in a vertical column.

In the present instance, I have shown only so much of the mechanismreferred to above as is necessary to arrive at an understanding of thesame in its cooperation with the devices of my invention. Referring toFig. 5 it will be seen that a depending arm 32, which is held in acentral position in the machine by attachment in a well known manner tothe fixed rail 24, extends into the body of the machine. 'I'his arm 32is provided with a roller 33 at the lower end thereof which is adaptedto cooperate with an actuating member 34 in the machine, said actuatingmember 34 being given a forward or clockwise movement during thedownward stroke of the operating handle I2 and being returned to normalposition, shown in Fig. 5, during the latter part of the return strokeof the operating handle. Due to the coaction between said member 34 andthe roller 33, the arm 32 will be given a corresponding oscillatorymovement at each actuation oi' the handle of the machine, provided thatthe button hereinbefore referred to is set in normalizing position. Theeffect of operating the arm 32 in this manner is to rock a universalrock shaft 35 with which said arm has an operative sliding connection,said shaft 35 being mounted to turn in bearings in the end plates I3 andI3 of the carriage and at its ends extending beyond said plates.

Secured to the right-hand end of the shaft 35, as shown in Fig. 1, is acrank arm 36 having pivoted thereto at 31 a line spacing pawl 38. Acontractile spring 33 is connected at one end to the pawl and at it'sopposite end to the crank arm 33 and thus tends to urge the pawl 38 in aclockwise direction about its pivot 31 and into engagement with aratchet wheel 40 mounted on the platen shaft I1. A stop lug 4I projectslaterally from the pawl 33 and underlies and coacts with the forward endportion of the arm 33 to limit the relative movement between the4pawland its carrying arm in one direction and under the force of thespring 33. Thus, during tally strip,

'u invention I am enabled to each oscillation o1` the arm 32 the crankarm 38 will rst be given an upward movement carrying the pawl 33 againstthe Wheel 40 and stressing the spring 39. After reaching an extremeposition in this direction the arm 36 will be returned to normalposition and advance the platen one line space, after which the pawlwill be disengaged from the ratchet wheel 40, leaving the parts in thenormal position shown in Fig. 1 ready for the next operation.

From the foregoing description, it will be apparent that if desired, theplaten I6 can be line spaced at each actuation of the operating handleI2 when the normalizing button is in position to cut out the tabulatingoperation of the carriage.

Having described briey certain of the features of the Dalton computingmachine, I shall now describe the devices of my invention as they may becombined therewith.

In machines of the same general character as the Dalton in which thedevices of my present invention have been embodied, due to the fact thata traveling carriage is employed so that entries may be made in ahorizontal line across a work sheet when desired, duplicate copies areusually obtained in the ordinary manner by using.

a second work sheet with a carbon sheet or auxiliary ribbon carriedbythe carriage and interposed between the sheets. When tally rollmechanism is employed it is usually mounted on the carriage to traveltherewith and hence is set to take duplicate entries of certain columnsonly, the tally strip being wrapped around the platen with the recordsheet.

According to my present invention I provide tally roll mechanism that iscarried by a fixed part or parts of the machine and does not travel withthe carriage. Hence, the record sheet R carried by the carriage willmove relatively to the and obviously such a tally strip cannot bewrapped around the platen and cannot interfere with the travelingmovement thereof. However with tally roll mechanism of my present eiecta duplicate printing in a vertical column onv the tally strip of everyitem entered, regardless of the movements of the carriage and the mannerof distributing the same items on the record sheet carried thereby, andwithout interfering with the travel of the carriage and the work sheetwhich is carried by it.

Furthermore, according to my present invention I aim to eliminate theuse of any interposed carbon sheet or auxiliary ribbon by employing athin tissue tally strip of a transparent or translucent texture whichwill be fed in front of the regular inked ribbon ill, so that when thetype are moved to printing position, in addition to the usual imprintbeing formed on the front side of a record sheet, an imprint will alsobe made upon the rear side of the tissue tally strip. Since the tallystrip is of a transparent or translucent character the imprint may beread or inspected from the front side thereof. Such a method of printingon the rear side of a strip or sheet is known as ghost printing and, asmentioned above, eliminates the use of a carbon sheet or auxiliaryribbon and produces a regular inked duplicate copy.

In addition to the above, I aim to provide this mechanism for effectingghost" printing on a tally strip, which may be applied as an attach-`ment to the regular Dalton computing machine described above; andprovide, in conjunction therewith, mechanism by means of which the tallystrip may be rewound on a separate roll at the front of the machine, thetally strip being fed to said roll in single line spacing movements uponeach actuation of the operating handle I2.

Referring again to Fig. 1, it will be seen that I have provided at therear of the machine a tally strip supply roll 44 which is supported bybrackets 45 secured by screws 46 to the rear of the casing I0.. From thesupply roll 44 a tissue tally strip T may be fed into a chute or guide41. As shown in Fig. 6 this chute 41 may be formed of two thin strips ofmetal or other suitable material which constitute upper and lower covermembers 48 and are heldapart by means of two separating strips 49. Thecover members 48 and separators 49 may be secured together in anydesirable manner, such as by welding, to thereby form the closed chute41, having an internal opening or passage way 50 of suicient size toallow the tissue tally strip T to pass through.

It is the purpose of the closed chute 41 to lead the tissue tally stripT from the supply roll Q4 over the rear portion of the machine andbeneath the carriage 2G and platen without interfering therewith, andthence upward to the printing line. Therefore, in order that the tallystrip T may arrive at the printing line in a clean and undamagedcondition, it is desirable to mount the chute 41 upon the machine insuch a manner that there will be no sharp curves or cutting edges tomutilate the tissue strip when it is being drawn through said chute.Accordingly, as indicated in Fig. 1, I provide an upwardlybent lip orfiange 5i at the opening end of the chute 41 adjacent the supply roll 44to aid in the insertion of the tally strip T into said chute and preventsaid strip from being torn during feeding. At the rear of the machinethe chute 131 is supported by means of posts 52 and may be secured tothe top of the casing i0 at any convenient points and in any suitablemanner, such as with the aid of screws 53. Thus, said chute 41 passesover the rear portion of the machine in a substantially horizontalplane, is then bent downward with as wide a curve as possible and ledbeneath the carriage and platen, as shown in Figs. 1 and 5, from whereit passes upward in front of the type sectors i3. Upon approaching theprinting line position, as indicated in Fig. '1, the chute passes infront of the printing ribbon i6 and terminates just above said ribbon.Obviously, such a manner of mounting the tally supply roll and leadingit to the printing line position will in no way interfere with themovement of the carriage or the record sheet carried thereby.

Referring now to Fig. 2 it will be seen that the chute i1 is providedwith a substantially reetangular cut-out portion at the upper endthereof. This cut-out portion 5d is deep enough to allow the tissuetally strip T to be4 exposed to the action of the types at the printingline and thereby receive imprints on the rearward side thereof duringthe printing operation of the types.

However, the cut-out portion 56 is slightly less in width than the widthof the tissue tally strip T and thus forms marginal engaging and holdingportions for said tally strip. It will be apparent that these holdingportions 55 constitute supports for the tally strip and maintain it in arigid and vertical position at the printing line thereby facilitating inthe production of clear and well defined imprints on said strip andstill hold the tally strip out of the path of movement of the carriage.

After being led from the supply roll 66 through the chute 61 to theprinting line the tissue tally 5 strip passes upward to my improvedautomatic feedingand rewinding mechanism which will now be describ\ed.

Referring particularly to Figs. l, 2 and 5 it will be seen that myautomatic feed and rewind device, which is designated as a whole by thereference numeral 58, comprises left and right side plates or framemembers 51 and 58 (Fig. 2) supported and maintained spaced apart bymeans of suitable forward and rear guide rods or cross l5 bars 58 and 68respectively. This frame is mounted at the front of the machine, forwardof the carriage and directly over and forward of the type sectors I 3,by means of foot pieces 6| and conveniently secured to a part of thecasing with the aid of screws 62. As shown in Fig. 5 the screws 62 arefastened into downwardly-projecting ears 63 provided on an auxiliaryhood-shaped casing member 64 which covers that part of the actuatingmechanism projecting above the mainv casing I8.

From an inspection of Fig. 2, which shows the parts in normal positionthough detached from the machine, it will be seen that a bail,comprising rearwardly projecting arms 65 and 66 pivoted at 61 and 68 tothe side plates 51 and 58 respectively and connected at their rearwardend by means of a cross bar 68, forms a support for a paper cutter 18which is secured to said cross bar 68 by means of screws 1|. A ngerpiece 68 is provided on the arm 66 adjacent the pivot 68 for the purpose.of manually raising the bail as will hereinafter appear. Mounted on ashaft 12 which is journaled in the arms 65 and 66 at the ends thereofand below the cross bar 68, is a feed roll 18. A spring 14 attached atone end to the arm 65 and at its other end to the side plate 51, tendsto turn the bail 65, 66, 68 in a counterclockwise direction (as theparts appear in Fig. 3) about its pivots 61 and 68 andmove the feedroller 18 into engagement with a second cooperating feed roller 15, byand between which feed rollers the tally strip is fed. The feed roll 15is mounted upon a shaft 16 which is given a constant and definitefeeding or line spacing movement with every actuation of the operatinghandie l2, as will hereinafter more clearly appear.

I shall now describe the means by which the above mentioned line spacingmovements of the feed roll 15 are effected.

As the parts are shown in Fig. 8 the shaft 16 terminates at theright-hand endy thereof in a reduced portion 11 which is journaled inthe side plate 58. If desired a washer 18 may be provided on the insideof the side plate 58 to reduce the 60 end friction of the shaft 16against said plate.

Likewise the opposite end of the shaft 16 terminates in twoprogressively reduced portions 18 and 88 respectively, the former beingrotatably mounted within a hub 8| which is fixed in the side plate 51.On the inside of the side plate 51 a driving gear 82 is fixed to thereduced portion 18 of the shaft 16 for rotation therewith by means of apin 88. This gear 82 is used to drive a paper wind-up reel as willhereinafter more clearly appear.

A second hub 84 is mounted on thereduced portion 88 of the shaft 16 andsecured thereto by means of a set-screw 85. 'I'his hub 84 has a ratchetwheel 86 fixed to the end thereof adjacent ,75 the hub 8| and at theopposite end thereof is provided with a knurled knob 81 so that the feedroll 15 may be rotated by hand if desired. The teeth 86* of the ratchetwheel 86 are adapted to cooperate with a feed pawl 88 which is pivotedat 88 to an arm 88 as shown in Figs. 2 and 5, said arm 88 being fixedupon a hub 8| which is rotatably mounted on the fixed hub 8 I. Thus,regardless of the movements of the shaft 16 the arm 88 may be moved asdesired. As best shown in Fig. 5 the pawl 88 is held in constantengagement with the teeth 86* of the ratchet wheel by means of a spring82 which is attached at one end to the pawl and at its other end to thearm 88, while a stop pin 88 limits the movement of he pawl 88 in theopposite direction.

Pivotally connected to the arm 88 at 84 and extending downwardlytherefrom is a link which is pivotally connected at its lower end at 86to a lever arm 81. 'I'he lever arm 81 constitutes one arm of a bellcrank or actuating lever 88 which is pivotally mounted upon a pivot stud|88. The other arm |8I of said actuating lever 88 extends downwardlyinto the machine at a position in front of a roller |82 provided on theupper end of the usual right-hand hammer restoring arm |83 which insuresa proper opera- .tion and return of the printing hammers |88! This arm|8I is held in constant engagement with the roller |82 by means of aspring |84, which is attached at one end to a pin |85 provided in saidarm, and at its other end is attached to a pin |86 provided in adownwardly extending projection |01 of the guide plate 51. Thus. the armI8I is held in normal position by the hammer restoring arm |83 and willfollow the movement of said arm as will presently appear.

In the Dalton machine with each downward stroke of the operating handleI2 the hammer restoring arm I 88 will move toward the rear of themachine or to the right as shown in Fig. 5 and on the upward or returnstroke of said operating handle the restoring arm |88 will be returnedto its normal position shown in Fig. 5. It will befapparent that duringsuch movement of the hammer restoring arm I 88, the arm 81 of saidactuating lever 88 will first be moved upward and then will be returnedto itsnormal position. Such movement of the arm 81 of the actuatinglever will transmit an oscillatory motion to the pawl carrying arm 88whereby said arm will first be moved in a clockwise direction, as theparts are shown in Fig. 5, and will then be moved in a counter-clockwisedirection back to normal position. 'Ihis will cause the pawl 88 to firstmove back over the teeth 86 of the ratchet wheel 86 so that on theforward or counterclockwise movement of the pawl carrying arm 88 thefeed roller 1 5 will be turned in a line spacing direction. As shown inFigs. 2 and 5, the arm 81 is limited in its upward movement by a stoppin I 88 and limited in its downward movement by a similar pin |88provided in the side plate 51. A spring detent |I8 pivoted at ||I to theside plate 51 may be provided to engage the ratchet wheel 86 and preventaccidental displacement or advance thereof in the usual manner. It is tobe understood that the construction and arrangement of the abovedescribed line spacing mechanism for the feed roller 15 is such thatupon a return stroke of the operating handle I2 said feed roll will berotated a distance sufficient to advance any sheet or strip fed betweensaid roll 15 and the feed roll 13 a distance of one line space.

Therefore. when the tissue tally strip T is fed :assI

ing handle I2. When fed in this manner, the v finished or typed tallystrip T may, if desired, be.

torn oil with the aid of the cutting knife 10. In

addition to the automatic feed of the tissue tally strip, said strip maybe fed by hand either by turning the knurled knob 81 or vby releasingthe l upper feed roll 13 with the aid of the finger piece '68 providedon the lever 03 and pulling the strip T up manually. If desir/ed, thetissue tally strip T may be guided in its movement from the chute II1 tothe feed rolls 13, 15 by Yproviding guide flanges I I2 on the' cross bar59,-as shown in Fig. 2. It will be recalled that as described above,when the normalizing button is set in normalizing" position the platenI0 may be rotated vupon each actuation of the operating handle I2 tofeed the record sheet R a line space distance upon each such actuation.Therefore, when said button is in the normalizing position the tallystrip and ledger sheet may be line spaced in unison and equal distances.

In addition to the means for' automatically feeding the tally strip inline spacing direction upon each actuation of the operating handle I2, JI have provided auxiliary means for winding said tally strip upon a reelor spool as said strip is fed from the feed rolls 13 and 15. I shall nowdescribe the automatic winding mechanism.

Referring particularly to Figs. 2 and 4 it will be seen that I haveprovided a tally strip rewind reel or spool I I5 for receiving andwinding thereon the tissue tally strip T as it is fed from the feedrolls 13 and 15. The rewind spool per se may, for the purposes of thepresent invention, 4

be of any suitable construction though that shown in the presentinstance is of the type disclosed in 4o the application of Norbert A.Jung, filed June 11,

1935 and bearing Serial No. 26,063 which matured as Patent No. 2,059,242on Nov. 3, 1936 which, for the purpose of clamping or attaching a tallystrip thereto, is provided with a special core ||5 that may be separatedand closed by means of a push-rod I|1 having a nger button I I8 at theright-hand end thereof. The push-rod II1 serves as a shaft for the spoolIIS at the right side thereof and is received in a hub IIS provided atthe upper forward portion of the side plate 58. At the left-hand end ofthe spool I I5 and in axial alignment with the push-rod II1 there is ashaft portion |20 fixed to the lefthand portion of the spool and havinga bearing ange |2I adjacent its point of attachment to said spool. Theshaft portion |20 is received in a hub or friction member |22 having abearing flange |23 at` the right-hand end thereof inside the side plate51, said friction member |22 being in turn received or ,iournaled in ahub |24 provided in the side plate 51. A gear |25, which constitutes adriven gear, is loosely mounted on the shaft portion |20 inside the sideplate 51 and between the bearing flanges |23 and |2| shown in Fig. 4 andmeshes with an idler gear |20 (Figs. 3 and 5) which is pivoted to theside plate 51 by means of a headed pivot pin |21. The idler gear |26also meshes with the driving gear 82 provided on the shaft of the feedroll 15 which, as described above, is given a line spacing movement witheach actuation of the operating handle I2. Therefore, the driven gear|25 on the spool shaft portion |20 will be advancedv due to the Y |20 ofthespool II5, said spool IIIi would be r0- tated Va corresponding extenteach time the feed roll `15 was given a line spacing movement due toactuation of the operating handle I2. However, a positive connectionbetween the winding spool I I5 and the rotating mechanism oi" thefeed'roll 15 is not desired since it would result in a tearing of"l thetally strip T because' of increasv ing tension in said strip due to theincreasing" diameter thereof as it is wound on the core ||6.

, That'is, if the rewind roll reel I|5 were rotated a constant amount ateach actuation of the operating handle`I2, as the tally strip T waswound thereon, said strip T would be advanced a greater distance byrotation of the spool ||5 than it had been fed uniformly due to theaction of the feed rolls 13 and 15. It will be apparent, therefore, thatif the pressure between the feed rolls 13 and 151s too great it willeffect a tearing of the spool I I5.

As shown in Fig. 4 and described above. the gear |25 is loosely mountedon the shaft portion I2I|l between` the friction bearing flanges |23 andI2 beyond the extremities of the hubs |22 and |24- and has secured atthe end thereof a hollow cap or housing member |30. This member |30 issecured to the shaft portion |20 by means of a headed screw |28 receivedin a tapped opening |29 in the end of the shaft portion |20. Surroundingthe shaft portion |20 and within the hollow cap |30 is a contractileexpansion. spring I3I which bears at the inner end thereof against theend of the hub |22 and at its opposite end bears against the inner endwall of said cap |30. The tension of the spring I3I is great enough topush the hub |22 inwardly to cause a frictional engagement between thegear |25 and the friction flanges |23 and |2I and thereby effect arotation of the spool ||5 when the feed roll 15 is turned to wind thetally strip 'I upon the core H6. However, the frictional engagement ofthe gear |25 is such that as the tension in the tally strip increasesdue to the increase in the diameter of the spool with the winding of thetally stripthereon, parts of the frictional driving connection betweensaid gear and the spool will slip, one on another before the strip canbe drawn' between the feed rollers or torn. Thus, by providing anautomatic frictionally controlled connection between the driven gearvand the spool, I am enabled to prevent a mutilation of the tally strip Tor too great a feed thereof, the amount of feed of said tally stripalways being governed by the feeding means.

It will be understood that when the screw |28 is drawn up tightly,manual turning of the cap |30 will eifect a rotation of the entirerewind spool so that'the tally strip may be wound or unwound by handwhen desired.

The shaft portion |20 projects to the left From the foregoingdescription it will be under- 10 riage or the record sheet;

(4) Simple and elcient means for rewinding a tally strip which includesmeans for controlling the line spacing and feed of said stripindependently of the line spacing of the carriage car- 15 ried recordsheet, though it may be in unison therewith;

(5) Tally roll mechanism which is independent of the carriage and may bereadily applied as an attachment to existing computing, typewrit- 20 ingor like machines without modifying, or materially modifying, theexisting structural features thereof; and

(6) Tally roll mechanism in which the tally strip is used to effect aduplicate printing without 25 the use of any auxiliary ribbon or carbonpaper.

While I have shown with some detail a Dalton machine embodying myinvention, it should be understood that the mechanism of my inventionmay be embodied in various machines differing widely in character; thatparts of the mechanism disclosed may be employed without others and thatvarious changes may be made in such mechanism without departing from myinvention as it is defined in the accompanying claim.

What I claim as new and desire to secure by Letters Patent is:

In a calculating machine, the combination with the printing type andthehorizontally movable platen thereof, of a tally strip guiding chute formaintaining a tally strip in fixed horizontal relation to said type inall positions of said platen, automatically operating ratchet operatingmeans, a tally strip feed ratchet operable by said means, a train ofgearing operable by said ratchet, a tally strip take-up-spool formedwith a shaftportion and a bearing face, said shaft portion forming abearing for one gear of said train, a sleeve onsaid shaft portion andformed with a bearing face, a spring, and means operable for tensioningsaid spring so as tol cause said bearing faces to frictionally drivesaid take-up-spool.

ARTHUR W. FEIERTAG.

